\makeatletter
\renewcommand*\maketitle{%
	\linespread{0.8}	
	\twocolumn[
	\begin{center}
		{\xiaoer\heiti \@title}
		
		\begin{center} \renewcommand{\arraystretch}{1.5}
			\begin{tabular}{c}
				\sihao \@author \\
				%\wuhao\@date \\
			\end{tabular} \renewcommand{\arraystretch}{1}
		\end{center} 
		{\global\let\author\@empty}%
		{\global\let\date\@empty}%
	\end{center}%
	\linespread{1.0}
	\vspace{-3.5em}
	\begin{onecolabstract}
		\linespread{1.1}
		\wuhao\heiti 摘\hspace{1em}要：\kaishu \the\myabstract
		
		\wuhao\heiti 关键词：\kaishu \the\mykeywords
		\vspace{1.5em}
	\end{onecolabstract}]
	\setcounter{footnote}{0}%
}
\makeatother


\maketitle%普通标题